html {
  font-size: 100px;
}
* {
  box-sizing: border-box;
}
@media screen and (min-width: 320px) {
  html {
    font-size: 50px;
  }
}
@media screen and (min-width: 360px) {
  html {
    font-size: 56.25px;
  }
}
@media screen and (min-width: 375px) {
  html {
    font-size: 58.59375px;
  }
}
@media screen and (min-width: 400px) {
  html {
    font-size: 62.5px;
  }
}
@media screen and (min-width: 414px) {
  html {
    font-size: 64.6875px;
  }
}
@media screen and (min-width: 440px) {
  html {
    font-size: 68.75px;
  }
}
@media screen and (min-width: 480px) {
  html {
    font-size: 75px;
  }
}
@media screen and (min-width: 520px) {
  html {
    font-size: 81.25px;
  }
}
@media screen and (min-width: 560px) {
  html {
    font-size: 87.5px;
  }
}
@media screen and (min-width: 600px) {
  html {
    font-size: 93.75px;
  }
}
@media screen and (min-width: 640px) {
  html {
    font-size: 100px;
  }
}
@media screen and (min-width: 680px) {
  html {
    font-size: 106.25px;
  }
}
@media screen and (min-width: 720px) {
  html {
    font-size: 112.5px;
  }
}
@media screen and (min-width: 760px) {
  html {
    font-size: 118.75px;
  }
}
@media screen and (min-width: 800px) {
  html {
    font-size: 125px;
  }
}
@media screen and (min-width: 960px) {
  html {
    font-size: 150px;
  }
}
body {
  margin: 0;
  padding: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, "微软雅黑";
  font-size: 20px;
  background-color: #F9F9F9;
}
ol,
li,
ul,
h1,
h2,
h3,
h4,
p {
  list-style: none;
  margin: 0;
  padding: 0;
  font-style: normal;
  font-weight: normal;
}
a {
  text-decoration: none;
}
img {
  vertical-align: top;
}
